Fairly straightforward telling of a man who'd reached his limit. The event is so uniquely shocking that it holds up the latter half of the film. Until then, most, but not all, of the players are revealed to be jerks or nuts.
Kingdom remains, for me, one Netflix's most watchable shows, showing you can take a stale sub-genre and breathe new life into it. This one-off movie, however, felt a little stale. While still fine revenge and zombie fare, it felt a bit too familiar.
That said, I was tired when I watched it and need to give it another go at some point.